Serial communication system between MSP430FR6047 and Arduino Nano. The MSP430 uses a state machine to process commands received via UART and sends responses back through the Arduino. Make sure both ...

Another option is to use cable, especially for serial communication. Look into the pinouts of the ESP32 wemos lolin32 lite module and the RDK-X5 board, UART, I2C, and SPI are all candidate solutions.

So let’s say your using an Arduino in your project. You already have the hardware-based serial interface working with one portion of the project and need a second serial port for unrelated hardware.